If your Yamaha YZ250F or WR250F (from 2001 through 2013) is due for a valve job, this Caltric valve set could be just what you need. The kit includes 5 valves total: 3 intake valves and 2 exhaust valves, designed to match OEM specifications for fit and performance. These are aftermarket parts, so they offer a cost-effective alternative to buying factory parts while still delivering reliable function. Made from quality materials, they're built to withstand the high temperatures and stresses of a four-stroke engine. Whether you're a seasoned mechanic or a DIY rider doing your own top-end rebuild, having a full set of valves on hand makes the job smoother. Always compare the pictures and measurements to your old valves before installing to ensure perfect compatibility. Proper installation and valve adjustment are key for optimal engine performance and longevity, so if you're not confident, consider having a professional handle it. With this set, you can restore compression, improve throttle response, and get your bike running strong again. Keep your dirt bike or trail machine in peak condition and ready for the next adventure. A must-have for anyone maintaining or rebuilding these popular Yamaha models.